#!/bin/env python
# -*- coding:utf-8 -*-
class Student(object):
	def __init__(self,name,score):
		self.__name=name
		self.__score=score
	def print_score(self):
		print('%s: %s' % (self.__name,self.__score))
	def get_name(self):
		return self.__name
	def get_score(self):
		return self.__score
	def set_score(self,score):
		if 0 <= score <= 100:
			self.__score=score
		else:
			raise ValueError('bad score')

if __name__=='__main__':
	bart=Student('Bart Simpson',98)
	print bart.__name
